Horn



April 24, 1934. w SCHWARTZ 1,956,254

HORN

Filed July 50, 1932 Patented Apr. 24, 1934 UNITED STATES PATET OFFICE HORN Indiana Application July 30, 1932, Serial No. 626,348

4 Claims.

My invention relates to valved musical instruments, and especially to horns, cornets, or the like.

The principal object of my invention is to provide an improved bottom cap for the valve casing of horns, cornets, or the like.

A more specific object of the invention is to provide a valve casing cap for horns, cornets, or the like, which is provided with means adapted to receive a tool to remove the cap from the casing.

A third object of the invention is to provide a valve casing cap which is transversely slotted to receive the point of a suitable tool to unscrew the cap from the casing.

Another object is to provide a transversely slotted valve casing bottom cap to enable the ready unscrewing thereof from the valve casing in the event the cap sticks or binds in its threads due to corrosion, or other causes.

Other and more specific objects of the invention are mentioned and described herein.

My invention is illustrated in the accompanying drawing, wherein.

Figure 1 illustrates a side elevational view of a cornet to which my invention is applied;

Figure 2 illustrates a fragmental side elevationai View showing the valve casing unit with my invention applied to the bottom end of each valve casing;

Figure 3 is a section taken on line 3-3 of 2 Figure 4 is a side View of my improved valve casing cap, partially in section; and

Figure 5 is a side view of the valve casing bushing, partially in section.

Similar numerals of reference indicate like parts throughout the several views on the drawmg.

Referring now to the details of the drawing the numeral 1 indicates generally a certain type 40 or design of cornet, the essential parts of which are well known in this art, and which includes the valve casing unit, the latter comprising the tubular valve casings 2, 3 and 4, respectively, within which the piston valves-mot shown--are reciprocally arranged and adapted to be actuated by the usual finger tips 5, 6 and '7, respectively.

The numeral 9 indicates a tubular bushing rigidly mounted in a counterbore 10 formed in the lower end of each of the casings 2, 3 and 4 adjacent the outer end thereof, said bushing being secured within said counterbore in any suitable manner, preferably by soldering. The upper portion of the bushing 9, as designated by the numeral 11, is preferably smooth and cylindrical and may engage the shoulder 12 at the upper end of the counterbore 10. The lower end of the bushing 9, which is eX-teriorly screw threaded at 13, projects beyond the lower end of the valve casing and is adapted to have the casing cap 15 mounted thereon, the latter being interiorly screw threaded at it for that purpose to removably connect said cap with the bushing 9. The numeral 16 indicates a transverse slot formed in the lower face of the cap 15, as illustrated, said slot comprising a pair of opposed recesses formed on opposite sides of the central aperture 17 and in alignment with each other, said slot being adapted to receive any suitable pointed article or tool to enable ready removal of the cap 15 from the bushing 9. In musical instruments of this character the collection accumulation of moisture at the bottom of the valve casing causes corroding of the screw threads which connect the cap therewith. I have therefore provided the slot 16 which facilitates the unscrewing of the cap 15 even though corrosion in the screw threads occurs. The expediency of providing the transverse slot 16 in the casing cap 15 is based upon the difficulty of removal of said cap, as it is now generally made and applied to the valve casing. In the use of the instrument considerable moisture necessarily accumulates in each valve casing and drains downward into the screw threads 14 and through the central drainage aperture 1'7 in the cap. In time, the threads 14. become seriously corroded by the moisture and the cap 15 binds or sticks when removal thereof is attempted. This condition compels the use of a wrench to the exterior of the cap 15 to unscrew it from the casing, thereby abrading and injuring the cap exterior which is usually orna'tely finished. The formation of the casing cap 15 with the trans verse slot 16 intersecting the drainage opening 17 enables the application of a screw driver, or other suitable tool, thereto, and the ready removal of the cap is effected without injury thereto.

I claim:

1. In a valved wind musical instrument and in combination with a valve casing, a casing cap provided with a transverse slot adapted to receive a tool for actuating said cap, and a complementary spiral connection between said cap and easing.

2. In a valved wind musical instrument and in combination with a valve casing provided with a bushing projecting from the interior thereof, a cap provided with a transverse slot, and a complementary spiral connection between said cap in combination with a valve casing provided with a bushing projecting from the interior thereof, a casing cap provided with a central aperture, said cap being screw threaded upon said bushing, and means for rotating said cap, said means including a pair of recesses in said cap and arranged on opposite sides of said cap aperture.

HARRY W. SCHWARTZ. 

